quasar | f0d45f8340cd203ee98c7765267175576d8017df5166f425f8a7483cb35a91c8

Analysis

max time kernel
126s
max time network
137s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
14-12-2024 14:09

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General

Target

f0d45f8340cd203ee98c7765267175576d8017df5166f425f8a7483cb35a91c8.exe
Size

288KB
MD5

2b3a191ee1f6d3b21d03ee54aa40b604
SHA1

8ecae557c2735105cc573d86820e81fcff0139c4
SHA256

f0d45f8340cd203ee98c7765267175576d8017df5166f425f8a7483cb35a91c8
SHA512

31f621fd96bf2964529607ae64a173c4a99f3976a91283a3609edc3799d98f59de80da6266ca10c26e5c8733644f1764aab00c7ba3e4dc5456573b9b20b6a393
SSDEEP

6144:k7zO0LSclT6FOwEP5Kq+SMv0VGb7bDcllbken:alJtTF9zVGkllbkm

Score

10^/10

quasar office discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.0.0

Botnet

Office

82.117.243.110:5173

Mutex

edH11NGQWIdCwvLx00

Attributes

encryption_key
aGPuRaDerdUDJPrAfXtB
install_name
csrss.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Framework
subdirectory
SubDir

Signatures

Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar
Quasar family
quasar

Quasar payload 1 IoCs

resource	yara_rule
behavioral1/memory/2464-1-0x00000000011F0000-0x000000000123E000-memory.dmp	family_quasar

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
2	ip-api.com

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f0d45f8340cd203ee98c7765267175576d8017df5166f425f8a7483cb35a91c8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2008	schtasks.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2464	f0d45f8340cd203ee98c7765267175576d8017df5166f425f8a7483cb35a91c8.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2464	f0d45f8340cd203ee98c7765267175576d8017df5166f425f8a7483cb35a91c8.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2464 wrote to memory of 2008	2464	f0d45f8340cd203ee98c7765267175576d8017df5166f425f8a7483cb35a91c8.exe	32
PID 2464 wrote to memory of 2008	2464	f0d45f8340cd203ee98c7765267175576d8017df5166f425f8a7483cb35a91c8.exe	32
PID 2464 wrote to memory of 2008	2464	f0d45f8340cd203ee98c7765267175576d8017df5166f425f8a7483cb35a91c8.exe	32
PID 2464 wrote to memory of 2008	2464	f0d45f8340cd203ee98c7765267175576d8017df5166f425f8a7483cb35a91c8.exe	32

C:\Users\Admin\AppData\Local\Temp\f0d45f8340cd203ee98c7765267175576d8017df5166f425f8a7483cb35a91c8.exe
"C:\Users\Admin\AppData\Local\Temp\f0d45f8340cd203ee98c7765267175576d8017df5166f425f8a7483cb35a91c8.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2464
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks" /create /tn "Framework" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\f0d45f8340cd203ee98c7765267175576d8017df5166f425f8a7483cb35a91c8.exe" /rl HIGHEST /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2008

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2464-0-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

Filesize
4KB

Download
memory/2464-1-0x00000000011F0000-0x000000000123E000-memory.dmp

Filesize
312KB

Download
memory/2464-2-0x0000000074DC0000-0x00000000754AE000-memory.dmp

Filesize
6.9MB

Download
memory/2464-4-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

Filesize
4KB

Download
memory/2464-5-0x0000000074DC0000-0x00000000754AE000-memory.dmp

Filesize
6.9MB

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads